N-ALKYL PEPTIDE CHELATE FORMERS, THEIR METAL COMPLEXES WITH RADIONUCLIDES, PROCESSES FOR PRODUCING THEM AND RADIO-PHARMACEUTICAL COMPOSITIONS CONTAINING THESE COMPOUNDS

摘要

The invention relates to N-alkyl peptide chelate formers, their metal complexes with radionuclides, processes for their production and radio-pharmaceutical compositions containing these compounds. The invention also relates to radio-pharmaceuticals containing these chelates in metal-complexed form, diagnostic kits in which the chelate may be present in non-complexed form and is complexed by the addition of either technetium or rhenium ions, and the use of such preparations for diagnostic and therapeutic purposes.